Vacuum Switching Valve - Inspection

Lexus IS250 IS220d GSE20 ALE20 2AD-FHV EMISSION CONTROL

VACUUM SWITCHING VALVE - INSPECTION

1. INSPECT NO. 1 VACUUM SWITCHING VALVE ASSEMBLY
Vacuum Switching Valve - Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Inspect the VSV resistance.

Using an ohmmeter, measure the resistance according to the value(s) in the table below.

  • Standard resistance:
  • TerminalsResistance
    1 - 228.3 to 31.1 Ω

If the result is not as specified, replace the No. 1 vacuum switching valve assembly.


Vacuum Switching Valve - Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Check VSV operation.

Check the air does not flow from the port as shown in the illustration.


If the result is not as specified, replace the VSV assembly.

Vacuum Switching Valve - Inspection. 2AD-FHV EMISSION CONTROL. Lexus IS250 IS220d GSE20 ALE20

Apply battery voltage across the terminals.

Check the air flows from the port as shown in the illustration.


If the result is not as specified, replace the VSV assembly.